ANS and the CRS Flashcards
1
Q
What 2 effects on the heart does the SNS have
A
- Heart rate acceleration
- Increased cardiac contractibility
2
Q
where are baroreceptors located
A
Aortic arch
Carotid sinus
3
Q
What is a positive dromotropic effect
A
An action that speeds up conduction of electrical impulses and increases conduction via the AV node
4
Q
Positive chronotropic effect
A
an action that increases the heart rate
5
Q
Positive inotropic effect
A
An action that increases the force of contraction of cardiac muscles (via myocardium)
6
Q
Where are chemoreceptors located
A
carotid and aortic bodies and medulla
